With a bit of trial and error, you can get away with a HFoV=66deg on a 3:2 aspect ratio sensor (in portrait), i.e. just over 18mm focal length on a 36mm x 24mm sensor (see attached). I've rotated the Nadir and Zenith shots by 90deg.
On Saturday, 10 October 2015 11:16:23 UTC+1, lukas wrote: > > -----BEGIN PGP SIGNED MESSAGE----- > Hash: SHA1 > > Hi Jan, > > for completeness: On a full format sensor 70.81 deg (vertically) should > be f=16.9mm. > > The lower 5 pictures should be down 21.22 deg, the other 5 up 21.22 deg. > Horizontally they should be spaced at 72 deg in each level. All these > 10 pictured would be landscape. If you do portrait you'd need f=15.7mm > or less. > The single down facing pic needs to be parallel to one of the pics in > the lower ring. The analogue holds for the up facing photo. > > (All of that is untested.) > > cheers, lukas > > > On 09/10/15 23:23, Wirz wrote: > > Hi Jan, > > > > Based on what wikipedia says about regular dodecahedra and pentagons and > > after some scribling: > > Seen from the centre of a regular dodecahedron the height of one of the > > faces has an angle of 1.24 or 70.8 degrees. The diagonal of a pentagon > > face has an angle of 1.31 or 74.8 degrees. > > > > If I assume, that you want to shoot one photo down, one up and five on > > an upper and a lower circle each, then you'd have to shoot landscapes to > > get the benefit of 70.8 degrees, for portraits it's the 74.8. > > > > I hope I'm not missing any perspective related complication. > > > > cheers, lukas > > > > > > On 09/10/15 21:37, Jan Martin wrote: > >> Hello > > > >> I need to shoot a 360x180 pano as a Dodecahedron (12 images). > > > >> What is the ideal focal length? > >> With what roll, pitch yaw values to shoot for as little overlap as > possible? > > > >> What kind of tools do you recommend to do this kind of planning? > > > >> Thanks, > >> Jan > > > > > > > > > > - -- > Do not believe the naysayers who say it cannot be done. > -----BEGIN PGP SIGNATURE----- > Version: GnuPG v1.4.12 (GNU/Linux) > > iEYEARECAAYFAlYY5W8ACgkQ1m2kmG8CIy1JtACgrx+zwoWEw7GycDD0pzKL03jK > TIAAoNETCm+9PpI+KddKOXi6jRZaCZGq > =vW/M > -----END PGP SIGNATURE----- > -- A list of frequently asked questions is available at: http://wiki.panotools.org/Hugin_FAQ --- You received this message because you are subscribed to the Google Groups "hugin and other free panoramic software" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/hugin-ptx/dddc975f-7895-4024-a9a6-118f8a401139%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
